AGENT-1027: Dev docs for iscsi #9296
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@pawanpinjarkar: This pull request references AGENT-1027 which is a valid jira issue. Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the task to target the "4.19.0" version, but no target version was set. In response to this: Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository. |
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It would be useful to provide more info on why a secondary interface needs to be provided for iSCSI, i.e. because the default interface on the machine interface is reconfigured by OVN at boot so access to the root volume would be interrupted. It would also be useful to mention that both the agent ISO and the installed RHCOS image would be accessed via iSCI. Also why is a minimal agent ISO is required for non-OCI platforms? I believe its since both image are stored in the same location on the iSCSI target there may be a conflict depending on the size but it would be useful to clarify. It would also be useful to outline any limitations in a mult-inode installation regarding iSCSI, as in each node must have a dedicated iSCSI target. |
| iSCSI (Internet Small Computer Systems Interface) is a network storage protocol that allows clients (initiators) to send SCSI commands to storage devices (targets) over IP networks. iSCSI provides a centralized and cost-effective storage management to use remote storage as if it were local disk storage. | ||
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| ### Supported version: OpenShift 4.18 |
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| ### Supported version: OpenShift 4.18 | |
| ### Supported since version: OpenShift 4.18 |
| ## Key Systemd Services for iSCSI Boot | ||
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| ### `iscsistart.service` | ||
| - **Path**: `data/data/agent/systemd/units/iscsistart.service` |
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